Load Specifications
Load data in caliber .380 ACP with .355 | 115gr | X-TREME RN bullet and 35 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N32C Tin Star.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 60% and propellant combustion ≥ 80%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 3.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000² | <<locked>> | 76% | 17,680 psi | 90% | 761 fps | 96.9% |
| Accurate Solo 1250* | <<locked>> | 88% | 17,361 psi | 89% | 787 fps | 89.4% |
| ADI AP 70N*² | <<locked>> | 72% | 16,723 psi | 85% | 787 fps | 90.1% |
| ADI APS 350² | <<locked>> | 68% | 17,289 psi | 88% | 696 fps | 100% |
| ADI APS 450² | <<locked>> | 68% | 17,013 psi | 87% | 715 fps | 100% |
| ADI AS 30² | <<locked>> | 76% | 16,592 psi | 85% | 738 fps | 99.4% |
| ADI AS 50N² | <<locked>> | 72% | 16,708 psi | 85% | 755 fps | 95.5% |
| Alliant BE-86* | <<locked>> | 88% | 17,593 psi | 90% | 804 fps | 93% |
| Alliant Green Dot² | <<locked>> | 76% | 16,505 psi | 84% | 755 fps | 95.5% |
| Alliant RED DOT | <<locked>> | 80% | 17,709 psi | 90% | 778 fps | 99.5% |
| Baschieri & Pellagri 100* | <<locked>> | 80% | 17,448 psi | 89% | 764 fps | 94.4% |
| Baschieri & Pellagri 102 Pistol*ᴾ | <<locked>> | 100% | 14,982 psi | 77% | 761 fps | 94.8% |
| Baschieri & Pellagri 103 Pistol | <<locked>> | 80% | 17,027 psi | 87% | 797 fps | 95.3% |
| Hodgdon CFE Pistol* | <<locked>> | 84% | 16,636 psi | 85% | 781 fps | 88.1% |
| Hodgdon Clays | <<locked>> | 80% | 17,622 psi | 90% | 725 fps | 100% |
| Hodgdon TrailBoss*ᴾ | <<locked>> | 100% | 7,716 psi | 39% | 541 fps | 88.1% |
| Hodgdon Universal* | <<locked>> | 80% | 16,723 psi | 85% | 787 fps | 90.1% |
| Lovex S011*² | <<locked>> | 64% | 15,113 psi | 77% | 712 fps | 88.9% |
| Maxam CSB 1* | <<locked>> | 88% | 16,520 psi | 84% | 768 fps | 88.7% |
| Maxam CSB 2 | <<locked>> | 96% | 17,390 psi | 89% | 850 fps | 96.3% |
| Maxam CSB 3* | <<locked>> | 84% | 17,521 psi | 89% | 787 fps | 94.7% |
| Maxam CSB 4 | <<locked>> | 80% | 16,926 psi | 86% | 771 fps | 96.9% |
| Maxam CSB 5² | <<locked>> | 76% | 17,202 psi | 88% | 768 fps | 100% |
| ReloadSwiss RS 12 | <<locked>> | 84% | 16,839 psi | 86% | 840 fps | 98.1% |
| Rottweil P 801² | <<locked>> | 72% | 16,853 psi | 86% | 807 fps | 99.4% |
| SNPE Vectan A1*² | <<locked>> | 76% | 16,882 psi | 86% | 761 fps | 90.9% |
| SNPE Vectan BA 9* | <<locked>> | 80% | 17,434 psi | 89% | 764 fps | 86.5% |
| SNPE Vectan BA10² | <<locked>> | 64% | 16,998 psi | 87% | 715 fps | 100% |
| SNPE Vectan BA9 1/2* | <<locked>> | 80% | 15,925 psi | 81% | 755 fps | 87.5% |
| Vihtavuori N310² | <<locked>> | 64% | 17,506 psi | 89% | 761 fps | 100% |
| Vihtavuori N320 | <<locked>> | 80% | 17,274 psi | 88% | 801 fps | 97.5% |
| Vihtavuori N32C Tin Starᴾ | <<locked>> | 100% | 12,096 psi | 62% | 689 fps | 99.3% |
| Vihtavuori N330* | <<locked>> | 84% | 16,969 psi | 87% | 810 fps | 90.7% |
| Winchester 231*² | <<locked>> | 68% | 16,955 psi | 87% | 771 fps | 90.7% |
| Winchester AutoComp * | <<locked>> | 88% | 16,302 psi | 83% | 774 fps | 86.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 3.5"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate Solo 1000*² | <<locked>> | 60% | 12,517 psi | 64% | 653 fps | 92% |
| Accurate Solo 1250* | <<locked>> | 80% | 14,808 psi | 76% | 735 fps | 86.4% |
| ADI AP 70N*² | <<locked>> | 64% | 13,460 psi | 69% | 715 fps | 86% |
| ADI APS 350² | <<locked>> | 60% | 15,563 psi | 79% | 669 fps | 100% |
| ADI APS 450² | <<locked>> | 60% | 14,069 psi | 72% | 663 fps | 100% |
| ADI AS 30² | <<locked>> | 60% | 12,705 psi | 65% | 656 fps | 97.2% |
| ADI AS 50N*² | <<locked>> | 60% | 12,009 psi | 61% | 650 fps | 90.4% |
| Alliant BE-86*² | <<locked>> | 72% | 11,487 psi | 59% | 673 fps | 85.5% |
| Alliant Green Dot*² | <<locked>> | 60% | 11,864 psi | 61% | 650 fps | 90.3% |
| Alliant RED DOT² | <<locked>> | 60% | 11,356 psi | 58% | 636 fps | 95.2% |
| Baschieri & Pellagri 100*² | <<locked>> | 60% | 10,602 psi | 54% | 617 fps | 86% |
| Baschieri & Pellagri 102 Pistol*² | <<locked>> | 76% | 9,311 psi | 48% | 614 fps | 86.2% |
| Baschieri & Pellagri 103 Pistol*² | <<locked>> | 60% | 10,341 psi | 53% | 643 fps | 86.8% |
| Hodgdon CFE Pistol*² | <<locked>> | 76% | 14,518 psi | 74% | 735 fps | 85.5% |
| Hodgdon Clays² | <<locked>> | 60% | 12,125 psi | 62% | 623 fps | 99.6% |
| Hodgdon TrailBoss* | <<locked>> | 88% | 6,715 psi | 34% | 499 fps | 85.2% |
| Hodgdon Universal*² | <<locked>> | 68% | 13,460 psi | 69% | 715 fps | 86% |
| Lovex S011*² | <<locked>> | 60% | 13,953 psi | 71% | 689 fps | 87.5% |
| Maxam CSB 1* | <<locked>> | 84% | 14,315 psi | 73% | 722 fps | 86% |
| Maxam CSB 2*² | <<locked>> | 72% | 10,515 psi | 54% | 682 fps | 87.3% |
| Maxam CSB 3*² | <<locked>> | 64% | 10,718 psi | 55% | 633 fps | 86.2% |
| Maxam CSB 4*² | <<locked>> | 60% | 10,994 psi | 56% | 636 fps | 90.5% |
| Maxam CSB 5² | <<locked>> | 60% | 11,734 psi | 60% | 656 fps | 98.5% |
| ReloadSwiss RS 12*² | <<locked>> | 60% | 9,834 psi | 50% | 666 fps | 90% |
| Rottweil P 801² | <<locked>> | 60% | 12,314 psi | 63% | 712 fps | 96.6% |
| SNPE Vectan A1*² | <<locked>> | 64% | 12,676 psi | 65% | 669 fps | 85.8% |
| SNPE Vectan BA 9*² | <<locked>> | 76% | 16,215 psi | 83% | 741 fps | 85.1% |
| SNPE Vectan BA10² | <<locked>> | 60% | 15,461 psi | 79% | 689 fps | 100% |
| SNPE Vectan BA9 1/2*² | <<locked>> | 76% | 14,750 psi | 75% | 732 fps | 86% |
| Vihtavuori N310² | <<locked>> | 60% | 15,809 psi | 81% | 735 fps | 100% |
| Vihtavuori N320*² | <<locked>> | 60% | 10,327 psi | 53% | 643 fps | 89.6% |
| Vihtavuori N32C Tin Star*² | 1.3 gr | 60% | 6,367 psi | 33% | 492 fps | 89.9% |
| Vihtavuori N330*² | <<locked>> | 76% | 13,648 psi | 70% | 738 fps | 86.3% |
| Winchester 231*² | <<locked>> | 60% | 13,532 psi | 69% | 699 fps | 86.7% |
| Winchester AutoComp * | <<locked>> | 84% | 15,214 psi | 78% | 751 fps | 85.4% |
Recommended = one of the top powders for this cartridge and bullet combination.
* not dangerous but load has suboptimal powder burnt with possible characteristics such as extensive muzzle flash or inaccurate loads.
² fill rate low - you might want to consider using a filler to ensure proper ignition.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 6 powders for .380 ACP loaded with the .355 | 115gr | X-TREME RN. Maxam CSB 2 delivers the highest muzzle velocity at 850 fps; across all powders the maximum-charge window runs from 689 fps to 850 fps. Baschieri & Pellagri 102 Pistol gives the best case fill at 100 %, and 6 of the 6 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (135 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. Baschieri & Pellagri 102 Pistol, Vihtavuori N32C Tin Star reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Vihtavuori N32C Tin Star rank at the top here: for .380 ACP with the .355 | 115gr | X-TREME RN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant BE-86, Baschieri & Pellagri 102 Pistol, Maxam CSB 3 burn incompletely and react more sensitively to barrel length and temperature. Alliant BE-86, Baschieri & Pellagri 102 Pistol, Maxam CSB 2 stay subsonic at start load. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.